The Complete Guide to Holistic Cat Care with Dr. Jean Hofve. Holistic veterinarian and author Dr. Jean Hofve has more than 20 years’ experience in integrative veterinary medicine. She has a passion for feline health and nutrition and has intensively studied and researched pet nutrition and the pet food industry since the early 1990s. She has written dozens of articles and been interviewed for print, radio, and television around the world. She is an advisor to AAFCO, the organization that sets standards for pet food production.